Anti-slip device for bags

Abstract

The objective is to provide a bag anti-slip device that more reliably prevents the shoulder strap of a bag from slipping off the shoulder. [Solution] The device comprises a plate-shaped main body 1, first and second clavicle support parts 2 and 3 that protrude from the surface 1a of the main body 1 and face each other while maintaining a distance between them, and spacing adjustment mechanisms 4, 5, and 6 that adjust the distance between the first and second clavicle support parts 2 and 3 by moving the first clavicle support part 2 and the second clavicle support part 3 relative to each other. Shoulder straps 7 and 8 connected to a bag are attached to the back surface 1b of the main body 1, and the main body 1 is placed on the user's body so that the surface 1a faces the user's clavicle, and the user's clavicle is held between the first clavicle support part 2 and the second clavicle support part 3, whose opposing distance has been adjusted by the spacing adjustment mechanisms 4, 5, and 6.

Description

Technical Field

[0001] This invention relates to an anti-slip device for a bag that prevents the shoulder strap of the bag from slipping off the shoulder.

Background Art

[0002] In order to prevent the belt of a bag worn on the shoulder from slipping off the shoulder, a slip-preventing member is attached to the belt. For example, there is a device in which a sheet-like slip-preventing member made of a material with a large coefficient of friction is attached to the shoulder strap and placed against the shoulder. In this way, when only the frictional force of the material is utilized, a gap is likely to form between the slip-preventing member and the shoulder, making it difficult to obtain a frictional effect. Also, as in Patent Documents 1 and 2, there is a device in which a cushioning pad attached to the shoulder strap is interposed between the belt and the body surface, and the pad is deformed along the unevenness of the body surface to eliminate gaps and make it difficult to slip.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] As described above, even when using a pad that elastically deforms, depending on the weight and size of the bag, the direction of the shoulder strap, the body shape of the user, etc., the magnitude and direction of the force acting on the pad differ. Therefore, the pad does not always adhere sufficiently to the unevenness of the body, and there are cases where the anti-slip effect cannot be fully exhibited. Thus, it was not possible to prevent the bag from falling or, even if it did not fall, from experiencing the unpleasant feeling of being about to fall.

[0005] The objective of this invention is to provide a bag anti-slip device that can more reliably prevent the shoulder strap of a bag from slipping off the shoulder. [Means for solving the problem]

[0006] The first invention comprises a plate-shaped main body, first and second clavicle support parts protruding from the surface of the main body and facing each other at a distance apart, and a spacing adjustment mechanism that moves the first and second clavicle support parts relative to each other to adjust the distance between them. A shoulder strap connected to a bag is attached to the back surface of the main body, and the main body is placed on the user's body so that the surface of the main body faces the user's clavicle, and the user's clavicle is held between the first and second clavicle support parts, whose distance from each other has been adjusted by the spacing adjustment mechanism.

[0007] The second invention is provided on the back of the main body a belt guide portion that guides and directs the shoulder strap in a direction intersecting the direction in which the first clavicle support portion or the second clavicle support portion moves by the spacing adjustment mechanism described above.

[0008] The third invention provides a shoulder rest portion on the opposite side of the first clavicle support portion, sandwiching the second clavicle support portion, which is provided by folding it toward the surface side along a fold line that extends in a direction intersecting the direction in which the first clavicle support portion or the second clavicle support portion moves by the spacing adjustment mechanism of the main body.

[0009] The fourth invention is that the belt guide portion is equipped with a guide changing mechanism that changes the guiding direction of the shoulder strap.

[0010] The fifth invention is that the shoulder strap consists of a first and a second belt separated on the back surface of the main body, the ends of the first and second belts are rotatably attached to the back surface of the main body, and a rotating mechanism is provided to maintain the rotational position of each of the first and second belts.

[0011] The sixth invention is that each of the first and second clavicle-holding portions is provided with an arc-shaped portion that protrudes toward the opposite side.

[0012] The seventh invention is that the main body is equipped with a shoulder strap having bag attachment parts at both ends for attaching a bag to be detached. [Effects of the Invention]

[0013] According to the first invention, the shoulder strap can be made less likely to slip by fastening it to the collarbone. In particular, since the spacing of the collarbone support parts can be adjusted to match the user's collarbone, the position of the shoulder strap is fixed, and the bag can be more reliably prevented from slipping off.

[0014] According to the second invention, the belt guide can guide the direction of the shoulder strap in a direction that reduces the downward force acting on the shoulder strap. Therefore, the shoulder strap, and consequently the bag, is less likely to slip off, and no excessive force is applied to the collarbone support area, preventing pain or discomfort for the user.

[0015] According to the third invention, when attaching the anti-slip device to the right or left collarbone, the shoulder rest portion can be made to rise from the neck side towards the arm side. As a result, the shoulder strap is pressed against the fold line of the shoulder rest portion, and the slope of the fold line, which is higher on the arm side, makes it less likely to slip down towards the arm.

[0016] According to the fourth invention, the direction of the shoulder strap can be changed by moving the belt guide. Therefore, the direction of the shoulder strap can be guided to the optimal direction according to the user's body shape and the position in which it is worn.

[0017] According to the fifth invention, the first and second belts can be rotated individually to set their respective directions. Therefore, it is possible to simultaneously realize a direction in which the shoulder strap is not easily pulled by the weight of the bag and a direction in which a gap is not easily formed between the user's shoulder and the bag. Thus, it is possible to more surely prevent the bag from slipping off without causing discomfort.

[0018] According to the sixth invention, the portions facing the collarbone in the first and second collarbone holders are arcs. Since the collarbone is clamped by the point contact of the pair of arcs, the first and second collarbone holders that clamp the collarbone are less likely to shift even if the angle of the collarbone or body shape is different. Also, the angular portions do not hit the user.

[0019] According to the seventh invention, a shoulder strap band pre-attached to the main body can be attached to the bag and used as a non-slip shoulder bag.

Brief Description of the Drawings

[0020] [Figure 1] FIG. 1 is a view of the surface of the anti-slip tool according to the first embodiment. [Figure 2] FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1. [Figure 3] FIG. 3 is a view of the back surface of the anti-slip tool according to the first embodiment. [Figure 4] FIG. 4 is a schematic view showing the usage state of the anti-slip tool according to the first embodiment. [Figure 5] FIG. 5 is a view of the back surface of the anti-slip tool according to the second embodiment. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. 5. [Figure 7] FIG. 7 is a view of the surface of the anti-slip tool according to the third embodiment. [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII of FIG. 7. [Figure 9] FIG. 9 is a schematic view showing the usage state of the anti-slip tool according to the third embodiment. [Modes for carrying out the invention]

[0021] [First Embodiment] The anti-slip device of the first embodiment of this invention will be explained using Figures 1 to 4. Figure 1 is a view of the surface of the anti-slip device of the first embodiment, Figure 2 is a cross-sectional view of the anti-slip device, and Figure 3 is a view of the back surface of the anti-slip device. Figure 4 is a schematic diagram showing the usage of the anti-slip device of the first embodiment.

[0022] The anti-slip device of the first embodiment shown in Figures 1-3 comprises, for example, a resin plate-shaped body 1. The side of this body 1 shown in Figure 1 is the surface 1a facing the user, and the opposite side is the back surface 1b shown in Figure 3. The surface 1a of the main body 1 is provided with a first clavicle support portion 2 that protrudes substantially vertically from the surface 1a by bending the lower end of the main body 1, and a second clavicle support portion 3 that faces the first clavicle support portion 2.

[0023] Furthermore, the main body 1 has a linear slit 4 that extends toward the first clavicle support portion 2 from the end facing the first clavicle support portion 2 and penetrates the thickness of the main body 1. The second clavicle support portion 3 has a bottomed cylindrical shape. The second clavicle support portion 3 is attached to the main body 1 by a retaining bolt 5 that passes through the axial hole 3b in the center of its bottom surface 3a and the slit 4, and by a wing nut 6 on the back surface 1b side, which will be explained later (see Figures 2 and 3). Here, the head of the retaining bolt 5 is housed inside the second clavicle support portion 3. Note that in Figure 1, the first and second belts 7 and 8, which are located on the back surface 1b, are omitted.

[0024] On the back surface 1b of the main body 1, as shown in Figure 3, the ends of the first belt 7 and the second belt 8 are overlapped at a position corresponding to the second clavicle support portion 3 provided on the front surface 1a, the fixing bolt 5 is passed through, and a wing nut 6 is tightened onto the fixing bolt 5. The first belt 7 and the second belt 8 are long, flat belts. In Figure 2, labels 10, 11, and 12 all represent donut-shaped washers. Furthermore, the ends of the first and second belts 7 and 8 are each equipped with connecting members 9a and 9b, which are bag attachment parts that allow the bag body 13 to be attached and detached.

[0025] By loosening the wing nut 6, the retaining bolt 5, which penetrates the bottom surface 3a of the second clavicle retaining part 3 on the surface 1a side, can be moved along the slit 4 on the surface 1a, and by tightening the wing nut 6, the moved position of the second clavicle retaining part 3 can be maintained. In this way, by moving the second clavicle retaining part 3, the opposing distance between the first clavicle retaining part 2 and the second clavicle retaining part 3 can be adjusted. The retaining bolt 5, wing nut 6, and slit 4 constitute the mechanism for adjusting the opposing distance between the first clavicle retaining part 2 and the second clavicle retaining part 3.

[0026] Furthermore, by loosening the wing nut 6, the first and second belts 7 and 8 can be rotated around the fixing bolt 5, and then tightening the wing nut 6, the rotational positions of the first and second belts 7 and 8 can be maintained. In other words, the bolt 5 and wing nut 6 constitute a rotational mechanism that allows the first and second belts 7 and 8 to rotate and maintain their rotational positions.

[0027] [Effects, etc.] The method of using the anti-slip device of the first embodiment will be described. As shown in the schematic diagram in Figure 4, the connecting members 9a and 9b of the first and second belts 7 and 8 are attached to the bag body 13, and the second belt 8 is placed over the user's shoulder. The main body 1 is placed on the clavicle B and moved along the clavicle B, and at an appropriate position, the second clavicle support part 3 is moved along the slit 4, and the distance between the first clavicle support part 2 and the second clavicle support part 3 is adjusted to grip the clavicle B. In this way, with this anti-slip device, the opposing distance between the first clavicle support part 2 and the second clavicle support part 3 can be adjusted according to the user's physique. By adjusting the opposing distance between the first clavicle support part 2 and the second clavicle support part 3, the positioning of the main body 1 relative to the user's clavicle, that is, the user's body and the user's shoulder, can be made more reliable, regardless of the user's physique. Furthermore, because the second clavicle support portion 3 has a cylindrical shape, it fits into the hollow on the user's clavicle, allowing it to stably hold the clavicle B between itself and the first clavicle support portion.

[0028] The appropriate position for the main body 1 is one in which the first and second belts 7 and 8 are less likely to slip off, and the user experiences less discomfort from having their clavicle pinched. As shown in Figure 4, the first belt 7 extending downward from the main body 1 is inclined relative to the vertical line L as it approaches the user's side and is pulled diagonally downward by the weight of the bag body 13. This pulling force becomes the force that causes the shoulder strap to slide on the shoulder. However, in this embodiment, since the end of the first belt 7 is fixed to the clavicle B via the main body 1, the first and second belts 7 and 8 do not slip off due to the weight of the bag body 13.

[0029] Furthermore, in the first embodiment, the direction of the second belt 8 can be individually adjusted to match the slope of the shoulder, making it less likely for the second belt 8 to slip. For example, by adjusting the direction of the second belt 8 that rests on the shoulder to be perpendicular to the slope of the shoulder, the flat second belt 8 can be brought into surface contact with the sloped surface of the shoulder, increasing the contact area between the sloped surface of the shoulder and the second belt 8 and thereby increasing the frictional force. Conventionally, if the belt of the bag body is flat, when the belt worn on the shoulder is pulled diagonally downward by the weight of the bag body, it becomes difficult for it to make surface contact with the sloped surface of the shoulder. In contrast, in the first embodiment, the flat second belt 8 can be brought into surface contact with the sloped surface of the shoulder, increasing the contact area between the sloped surface of the shoulder and the second belt 8. In this way, by fixing the main body 1 to the clavicle B and adjusting the direction of the second belt 8 to suppress the tensile force generated when the second belt 8 tries to slip down the shoulder, the force acting on the clavicle B via the main body 1 can be reduced.

[0030] Furthermore, the retaining bolt 5 passes through the axial hole 3b in the bottom surface 3a of the second clavicle support part 3 and the slit 4, and the threaded portion of the retaining bolt 5 that passes through holds the first belt 7 and the second belt 8 together at their ends. In this way, the anti-slip device uses the retaining bolt 5 as a common component to realize a mechanism for adjusting the distance between the first and second clavicle support parts 2 and 3, and a rotation mechanism for the first belt 7 and the second belt 8.

[0031] Furthermore, since the head of the retaining bolt 5 is housed within the second clavicle support portion 3, the head of the retaining bolt 5 will not come into contact with the user wearing the anti-slip device. For example, it is also possible to attach the ends of the first belt 7 and the second belt 8 to the main body 1 at a location other than the second clavicle support portion 3 using retaining bolts. However, in that case, due to the configuration of the anti-slip device, the head of the retaining bolt would protrude from the surface 1a of the main body 1. In this case, the head of the retaining bolt 5 would come into contact with the user wearing the anti-slip device. In contrast, in the first embodiment, the head of the retaining bolt 5 does not come into contact with the user wearing the anti-slip device, and therefore does not cause any discomfort to the user wearing the anti-slip device.

[0032] In this first embodiment, the shoulder strap is composed of separate first and second belts 7 and 8, but the first and second belts 7 and 8 may be integrated. If the belt material is flexible, even if the belt bends and changes direction at the main body 1, no particular discomfort will be felt. In Figure 4, the second belt is worn over the user's left shoulder, but by adjusting the direction of the first and second belts 7 and 8, it can also be used for the right shoulder.

[0033] Furthermore, even without rotating the first and second belts 7 and 8 attached to the main body 1 to adjust their direction, if the first clavicle support part 2 and the second clavicle support part 3 of the main body 1 are moved relative to each other as described above, and the clavicle B is clamped at an appropriate distance, the bag body 13 can be prevented from slipping off. However, if the angles of the first and second belts 7 and 8 can be adjusted as in this embodiment, the clamping force on the clavicle B cannot be made too strong, and the bag can be prevented from slipping off without applying a load to the clavicle. If the clamping force on the clavicle is too strong, or if the clavicle supports the weight of the bag body 13, the clavicle B area may become painful or uncomfortable, but there is no such concern in this embodiment.

[0034] [Second Embodiment] The anti-slip device of the second embodiment will be explained using Figures 5 and 6. Figure 5 is a view of the back surface of the anti-slip device of the second embodiment, and Figure 6 is a cross-sectional view. The second embodiment includes a belt guide portion 14 on the back surface 1b side of the main body 1 to guide the direction of the belt. The configuration of the main body 1 and its front surface 1a side is the same as in the first embodiment, and in Figures 5 and 6, the same reference numerals as in Figure 1 are used for components that are the same as in the first embodiment.

[0035] Unlike the first embodiment, the belt guide portion 14 of the second embodiment consists of a cylindrical guide portion body 14a through which a single shoulder belt is inserted, and a plate-shaped support portion 14b continuous therewith. The axial direction of the cylinder of the guide portion body 14a is in the direction that guides the shoulder belt, and the belt inserted through the cylinder of the guide portion body 14a is guided in the direction of arrow 16 in Figure 5. The direction of arrow 16 intersects with the direction in which the first clavicle support portion 2 or the second clavicle support portion 3 moves (the direction of the slit 4). Figure 6 shows a cross-section of the shoulder strap 15 inserted into the guide body 14a.

[0036] Furthermore, a shaft hole 14c is formed in the support portion 14b, and a retaining bolt 5, which passes through the shaft hole 3b and slit 4 of the second clavicle holding portion 3, is passed through this shaft hole 14c along with washers 10, 11, and 12. The belt guide portion 14 is rotatable around the retaining bolt 5, and by tightening the wing nut 6, the support portion 14b is fixed to the main body 1 and the position of the guide portion body 14a is fixed. In this second embodiment, the retaining bolt 5 and wing nut 6 constitute a guide changing mechanism that allows the guide direction of the shoulder strap to be changed in the belt guide section 14.

[0037] [Effects, etc.] In the anti-slip device of the second embodiment, the distance between the first clavicle holding part 2 and the second clavicle holding part 3 can be adjusted by loosening the wing nut 6, thereby properly gripping the user's clavicle. Furthermore, the rotating belt guide 14 allows the direction of the shoulder strap to be freely changed, enabling the user to guide the shoulder strap in the direction that is least likely to slip off, without causing discomfort. For example, if the belt guide 14 is fixed at the position 14X indicated by the dashed line in Figure 5, it becomes less likely to slip off when worn on the left shoulder, as shown in Figure 4. Furthermore, by moving the belt guide section 14 to position 14Y and changing the angle of the shoulder strap, it can be used for the right shoulder, preventing it from slipping off regardless of which shoulder it is worn on.

[0038] The cylindrical guide body 14a may have a shoulder strap, which has connecting members for attaching to the bag body at both ends, pre-inserted through it, or the sides of the cylinder may be made openable and closable so that the shoulder strap fixed to the bag body can be inserted afterward. If the shoulder strap is not integrated with the main body 1, but is equipped with a mechanism that allows it to be attached to and detached from the main body 1, then shoulder straps from various bags can be used as is. On the other hand, if a shoulder strap equipped with bag attachment points (connecting members) at both ends is provided as a set with the main body 1, then, for example, a tote bag can be used as a shoulder bag that won't slip off.

[0039] [Third Embodiment] The anti-slip device of the third embodiment of this invention will be explained using Figures 7 to 9. Figure 7 is a view of the surface of the anti-slip device of the third embodiment, Figure 8 is a cross-sectional view of the anti-slip device, and Figure 9 is a schematic diagram showing the usage of the anti-slip device of the third embodiment. The third embodiment includes a plate-shaped shoulder rest portion 17 on the main body 1.

[0040] In the third embodiment, the shoulder rest portion 17 is integrated with the main body 1 and, as shown in Figures 7 and 8, is the portion opposite to the first clavicle holding portion, with the second clavicle support portion in between, and is formed by folding it toward the surface 1a side along the folding line 17a. The fold line 17a is set to intersect with the direction in which the slit 4 extends (the direction in which the first clavicle support portion 2 or the second clavicle support portion 3 moves). Here, the fold line 17a is not actually drawn on the main body 1, but is illustrated for illustrative purposes. The fold line 17a does not intersect with the direction in which the slit 4 extends perpendicularly, but rather intersects with an inclination relative to the direction in which the slit 4 extends. That is, the upper end of the main body 1, or the lower end of the shoulder rest portion 17, has a shape that is inclined with respect to the direction in which the slit 4 extends. Thus, the main body 1 is the same as the first embodiment except that it has the shoulder rest portion 17 and the length necessary to integrate the shoulder rest portion 17 at the upper end. In Figures 7 and 8, the same reference numerals as in Figure 1 are used for components that are the same as in the first embodiment.

[0041] [Effects, etc.] In the anti-slip device of the third embodiment, as shown in Figure 7, the one in which the fold line 17a is set to rise upward to the right when viewed from the surface 1a side is for the right shoulder and is attached to the right clavicle B. In this third embodiment, as with the anti-slip devices of the first and second embodiments, the user's clavicle B is held between the first clavicle support portion 2 and the second clavicle support portion 3. At this time, the shoulder strap is adjusted so that the second belt 8 passes over the fold line 17a by adjusting the wing nut 6.

[0042] Here, the fold line 17a is set to intersect the direction in which the slit 4 extends, and the right side of the surface 1a is set to be higher. Therefore, when the slit 4 is oriented vertically and the right clavicle B is clamped between the first and second clavicle holding parts 2 and 3, the fold line 17a rises towards the right arm A, as shown in Figure 9. As a result, the second belt 8 pressed against the portion of the fold line 17a experiences a force in the direction of arrow 18, which points from the right arm A side towards the neck N side, due to the gradient of the fold line 17a. Therefore, the second belt 8 becomes less likely to move towards the right arm A side. Thus, in addition to the anti-slip effect in the first and second embodiments described above, the shoulder strap can be made less likely to slip off the shoulder.

[0043] Furthermore, by setting the fold line 17a of the shoulder rest portion 17 to be angled upward to the left when viewed from the surface 1a side in Figure 7, it can be made for the left shoulder, which is attached to the user's left clavicle. Also, the shoulder rest portion 17 may be freely bent along the fold line 17a relative to the main body 1. That is, the shoulder rest portion 17 can also rotate along the fold line 17a at the upper end of the main body 1. In this case, the shoulder rest portion 17 will be positioned to conform to the shape of the shoulder above the user's clavicle, preventing any discomfort to the user. In addition, the fold line 17a can be set to intersect perpendicular to the direction in which the slit 4 extends. Even in this case, since the clavicle itself is inherently sloped downward from the arm side towards the neck side, if the anti-slip device is firmly attached to the clavicle, the fold line 17a will also slope from the arm side towards the neck side, making the anti-slip device less likely to slip off the shoulder strap.

[0044] [Other embodiments] In the first, second, and third embodiments described above, the clavicle is held between a plate-shaped first clavicle support portion 2 and a cylindrical second clavicle support portion 3. However, the shape of the first and second clavicle support portions is not limited to those embodiments described above. In the above description, the first clavicle support portion 2 is flat and the second clavicle support portion 3 is cylindrical. However, for example, the second clavicle support portion 3 may be parallel to the first clavicle support portion 2, for example, in a semi-circular shape. Alternatively, the flat first clavicle support portion 2 may be replaced with a cylinder, and both the first and second clavicle support portions may be cylindrical.

[0045] When both the first and second clavicle support parts 2 and 3 are made of cylinders, the parts facing the clavicle become the arcuate surfaces of the sides of the cylinders, thus clamping the clavicle through point contact between a pair of arcs. Therefore, even if the angle of the clavicle or the body shape differs, it is easier to adjust to an appropriate distance between them compared to cases where contact is made by surfaces or lines, and the first and second clavicle support parts 2 and 3 that clamp the clavicle are less likely to shift. In addition, there is no risk of angular parts bumping into the user. However, if the first and second clavicle-holding portions 2 and 3 each have an arc-shaped portion that protrudes toward the opposite side, a similar effect can be expected even if they are not cylindrical. Furthermore, both the first clavicle support part 2 and the second clavicle support part 3 can be made as separate components from the main body 1, and both can be made movable to adjust the distance between them. [Industrial applicability]

[0046] It can prevent various bags from slipping off. [Explanation of symbols]

[0047] 1 Main unit 1a surface 1b back side 2 First clavicle retainer 3 Second clavicle retainer 4 slits 5. Fixing bolts 6. Wing nuts 7. Belt 1 8. Belt 2 9a, 9b (Mounting part) Connecting member 13 Bag body 14 Belt guide section 14a Guide Unit 14b Support part 17 Shoulder pad section 17a Folding line

Claims

1. A plate-shaped body, The first and second clavicle-holding portions protrude from the surface of the main body and face each other while maintaining a distance between them, A spacing adjustment mechanism that adjusts the distance between the first and second clavicle retainers by moving the first and second clavicle retainers relative to each other. Equipped with, A shoulder strap, which is connected to the bag, is attached to the back of the main body mentioned above. A bag anti-slip device that is placed on the user's body so that the surface of the main body faces the user's collarbone, and which grips the user's collarbone with the first collarbone holding part and the second collarbone holding part, whose opposing distance is adjusted by the spacing adjustment mechanism.

2. The main body is provided with a belt guide on its back surface that guides the shoulder strap in a direction intersecting the direction in which the first clavicle support or the second clavicle support moves due to the spacing adjustment mechanism described above. The anti-slip device for a bag according to claim 1.

3. The main body is provided with a shoulder rest portion on the opposite side of the first clavicle support portion, sandwiching the second clavicle support portion, which is bent towards the surface by a fold line that extends in a direction intersecting the direction in which the first or second clavicle support portion moves due to the spacing adjustment mechanism of the main body. The anti-slip device for a bag according to claim 1.

4. The above-mentioned belt guide section is equipped with a guide changing mechanism that changes the guide direction of the shoulder strap. The anti-slip device for bags according to claim 2.

5. The above shoulder strap consists of a first and second belt that are separated on the back of the main body. The ends of the first and second belts are rotatably attached to the back surface of the main body, and a rotating mechanism is provided to maintain the rotational position of each of the first and second belts. The anti-slip device for a bag according to claim 1.

6. Each of the first and second clavicle-holding portions described above is provided with an arc-shaped portion that protrudes toward the opposite side. The anti-slip device for bags according to claim 1 or 2.

7. The main body described above is equipped with a shoulder strap that has bag attachment points at both ends for attaching and detaching the bag. The anti-slip device for bags according to claim 1 or 2.

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